Search found 1997 matches

by mzenker
24 Sep 2020, 16:40
Forum: ElmerGUI
Topic: Reading gmsh mesh with elmer (ElmerGrid/Elmer GUI)
Replies: 10
Views: 2491

Re: Reading gmsh mesh with elmer (ElmerGrid/Elmer GUI)

The essential is that both are synchronized, no matter how it is implemented in detail... :)
by mzenker
24 Sep 2020, 13:53
Forum: ElmerGUI
Topic: Reading gmsh mesh with elmer (ElmerGrid/Elmer GUI)
Replies: 10
Views: 2491

Re: Reading gmsh mesh with elmer (ElmerGrid/Elmer GUI)

Hi Peter,

this is good news! So finally ElmerGUI-only users will not need to go to the command line in case of problems with mesh import.
Just by curiosity: Is this a new fork of ElmerGrid or will ElmerGUI and ElnerGrid have a shared codebase in the future?

Matthias
by mzenker
20 Aug 2020, 16:07
Forum: ElmerGUI
Topic: Internal boundary
Replies: 5
Views: 318

Re: Internal boundary

Hi, in ElmerGUI, you can select the outer surfaces and use View->Hide/Show selected. Then the outer surfaces are hidden and you should be able to see the inner ones. You can also look for a file mesh.names which should be created when the mesh file cre1ated by Salomé is imported. In the file you wil...
by mzenker
17 Aug 2020, 14:44
Forum: General
Topic: Navier-Stokes Lava Problem
Replies: 2
Views: 354

Re: Navier-Stokes Lava Problem

Hi,

did you have a look on glacier simulation with Elmer/Ice? I don't have any experience with it myself, and I don't know to which extent they are comparable, but at least in both cases you have a thick fluid flowing over ground...

HTH,
Matthias
by mzenker
11 Aug 2020, 14:17
Forum: ElmerGUI
Topic: ElmerGUI not correctly importing GMSH mesh
Replies: 4
Views: 389

Re: ElmerGUI not correctly importing GMSH mesh

Ah ok, I thought the system call to native ElmerGrid might be a shortcut/workaround. :)
by mzenker
11 Aug 2020, 12:33
Forum: ElmerGUI
Topic: ElmerGUI not correctly importing GMSH mesh
Replies: 4
Views: 389

Re: ElmerGUI not correctly importing GMSH mesh

Hi,

as this problem occurs not so unfrequently and generates questions by ElmerGUI users on the forum, wouldn't it be an option to just replace the ElmerGrid plugin by a system call to the native ElmerGrid (with default option autoclean) in ElmerGUI?

Matthias
by mzenker
29 Jul 2020, 11:51
Forum: ElmerSolver
Topic: Very short heating: Heat solver artifact?
Replies: 8
Views: 1588

Re: Very short heating: Heat solver artifact?

Hi, in fact this case was intended to be a pre-study. In my "real" case, the heating is done by a current through Joule heating. So I have very short current pulses (of the order of 3 us, repeated e.g. every 50 us) and want to examine the heating of the material. I have run the case with the static ...
by mzenker
29 Jul 2020, 11:05
Forum: ElmerGUI
Topic: Error of Bad real number in item 1 of list input
Replies: 18
Views: 759

Re: Error of Bad real number in item 1 of list input

Hi,

which file did you use for your installation?
If you open a terminal and type ElmerSolver, what does it say?

HTH,
Matthias
by mzenker
22 Jul 2020, 14:17
Forum: ElmerSolver
Topic: Very short heating: Heat solver artifact?
Replies: 8
Views: 1588

Re: Very short heating: Heat solver artifact?

Thanx for your replies. So at least I have not made a very trivial error. I didn't buy the paper indicated by Peter yet. So if I understand correctly, very small timesteps might be a problem. Is that due to something like the internal accuracy of the solver, or is it a more fundamental effect? Are t...
by mzenker
29 Jun 2020, 13:08
Forum: ElmerSolver
Topic: Very short heating: Heat solver artifact?
Replies: 8
Views: 1588

Very short heating: Heat solver artifact?

Hi, I want to examine material heating with very short (µs) heat pulses. I have set up a simple axisymmetric case and observe a strange behaviour: The temperature under the surface where the heat flow is induced is decreasing while the heat flow is switched on. I cannot think of a physical effect ex...